A loft-style living space with a mirror-polished gray concrete floor showing aggregate flecks and reflections of tall windows

Concrete floor polishing

Grinding and polishing the slab itself into a finished, sealed floor.

What this covers

Polished concrete turns the slab into the finished floor. The surface is ground with diamond tooling in successive grits, a densifier is applied to harden it, and it is polished to a matte, satin or high-gloss sheen, then sealed. The depth of the grind decides how much aggregate shows. It suits modern homes, basements and garages where a hard, low-maintenance floor is wanted.

When to call

  • A slab-on-grade home, loft or basement where the concrete can be the floor.
  • A garage or workshop wanting a durable surface without a coating.
  • A modern or industrial interior.

What to expect

  1. AssessThe slab is checked for cracks, patches and moisture. Repairs are made first.
  2. GrindCoarse to fine diamond grinding exposes the level of aggregate you chose.
  3. Densify and polishA densifier hardens the surface, then finer polishing reaches the sheen.
  4. SealA penetrating sealer protects it, then a walk-through.

Get a certified company

Look up a certified company by ZIP code. Every company's license, insurance and trades are verified before it is listed, and placement is never paid.

Questions people ask

Will cracks show?

Repaired cracks are visible as lines, which many people accept as part of the look. Overlays can hide them if you prefer.

Is polished concrete slippery?

A matte or satin finish is not. High gloss can be when wet, like any polished stone.

How is it maintained?

Dust mopping and occasional damp mopping with a neutral cleaner. Resealing every few years keeps it stain resistant.

Related: Concrete floor staining · Epoxy flooring · Floor leveling · All flooring

This page describes what the service involves. The company you hire sets the scope, the schedule and the price, and your contract is with that company. We verify credentials and collect reviews from real jobs. We do not guarantee any company's workmanship. Safety steps are general guidance. When in doubt, leave the home and call 911.